Cable stripper



April 22, 1947. c. s. VAUGHAN, JR

CABLE STRIPPER 2 sneata snut 1 Mam 7 April 22-,- 1947. c. s. VAUGHAN, JR

CABLE SRH'EER Filed Jan. 5, 1.945

2 Sheets-Sheet 2 Inventor I (Zafies fl a l fi N MWN atente Ar. 22, E947 1 @iaim.

This invention relates to a cable stripper, and more particularly to a cable stripper adapted for the removal of the lead, and/or the lead and armor from cables.

A primary object of this invention is the provision of an improved cable stripper adapted for the ready removal of lead, or the like, from sheathed cables when desired.

An additional object of the invention is the provision of such a device which may be readily applied to and removed from cables for use.

Still another object of .the invention is the provision of such a device with a cutting element adapted to be turned to a variety of angles, whereby the cable may be stripped by means of a. single longitudinal cut, or a helical cut as may be desired.

A still further object of the invention is the provision of such a device provided with a removable insert, whereby a plurality of sizes 'of cables may be accommodated in a single device.

Still another object of the invention is the provision of such a device provided with an improved holder particularly adapted for use with large size cables,

Still another object resides in the provision of such a device which will be sturdy and durable in construction, reliable and eflicient in use and operation, and relatively simple and inexpensive to manufacture.

Other objects reside in the combinations of elements, arrangements of parts, and features of construction, all as will be more fully pointed out hereinafter and shown in the accompanying drawings, wherein there is disclosed a preferred embodiment of this invention,

In the drawings:

Figure 1 is a front elevational view of one form of device embodying the instant inventive concept.

Figure 2 is an enlarged sectional view taken substantially along the line 22 of Figure 1, as viewed in the direction indicated by the arrows.

Figure 3-is an enlarged sectional view taken substantially'along the line 3-3 of Figure 2.

Figure 4 is a sectional view taken substantially along the line 4-4 of Figure 3.

Figure 5 is a top plan view of the device.

Figure 6 is a sectional view taken substantially along the line 66 of Figure 1.

Figure 7 is a sectional view taken substantially along the line 1-1 of Figure l, and

Figure 8 is a view similar to Figure 2, but showing a modified form of insert.

Similar reference characters refer to similar parts throughout the several views of the drawings.

Having reference now to the drawings, the device is comprised of a lower member generally in-' dicated at it, and an upper member generally indicated at H,

The lower member H3 is comprised of a central block portion i2 having a longitudinally extending semi-cylindrical reces l3 therein. Extending outwardly from the central member ii are two arms 94 and I5, semi-cylindrical in cross section. The extremity of the member Hi terminates in two upwardly extending, oppositely disposed lugs l6 provided with apertures, the ex tremity of the member lil being bifurcated to provide a slot. The upper member 1 l is comprised of a central body portion ll, and two transversely extending arms i8 and 59, each of semi-cylindrical cross section, having a flat under surface adapted to engage the flat upper surfaces of the portions I4 and i5. The extremity of the member is terminatesin a milled portion 23 adapted to fit between the lugs i6, aligned aper tures being provided through the members it and the member 20 to accommodate a hinge pin 2! (see Fig. 7). The pin 25 is comprised of a shank section 22 having a slot therein to permit the insertion of a screw driver, and a threaded portion 23 engaging a threaded aperture in one of the members it. The opposite ends of the member 15 and I9 are rounded, as at 24 and 25, respectively. Thus, it will be seen that the members I4, I8 and the members l5 and I9 may be separated or swung toward each other, the members l8 and I4 pivoting about the hinge pin 2|, in such manner that the central portions l2 and I! may be swung into clamping, or disengaging, relation to a cable, not shown. The central portion I! of the member H is provided with a longitudinally extending semi-cylindrical recess 30 adapted to register with the recess l3 r to provide a cylindrical bore.

The member I! is also provided with a cyin such manner that the shank may be moved vertically upwardly or downwardly within the bore 33.

The member 32 is rotatable within the bore 3|. and is provided with a plurality of apertures 40 at spaced intervals about the periphery thereof, adapted to engage spring-pressed headed retaining members 4|. As best shown in Figure 3, each of the members 4| is comprised of a pin 42 and a head 43, a compression spring 44 being positioned between the head and the portion l1,

' The lower extremity of the shank 34 is bifurcated, as at 45, and carries upon a screw 46 extended through suitable apertures cut in the sides of the bifurcationsa rotatable cutting blade or wheel 41.

Guide members 50 are adapted to be positioned in the semi-cylindrical recess l3, being held in place by, set screws 5|. Cooperating guide members 52 are correspondingly adapted to be positioned in the recess 30 and held in-place, as by screws 53, the heads of the screws 53 and 5| being suitably counter sunk to be flush with the walls of the guide. The guide members are semi-cylinto accommodate a variety of sizes of cables and form inserts.

In the modification shown in Figure 8, an insert 60 is substituted for the guide membe'r'50, being provided with a V-shaped depression 6| extending longitudinally thereof, and being heldin position, as by countersunk screws 62. When this form of insert is utilized, the insert 52 may be omitted as desired.

The guide members 50 and 52, in varying dimensions, are adapted to be utilized for cables of varying relatively small size, while the insert of the type shown at 50 may be advantageously utilized with large cables.

From the foregoing, the method of operation of the device should now be readily understandable.

When it is desired to strip a particualr cable 4 shank at the desired adjustment by means of the set-screw 38. i

With the central portions I2, l1 swung into the described clamping relation to a cable, and

the members l4, l8 and l5, l9 swung toward each other into-engagement, the guide members 50, 52, or the insert 60 and the recess 30, if the insert 60 is used, confine the cable therein for sliding movement in the same. Now, by using the members l4, l8 and |5, |9 as pairs of handle bars, the portions l2, l1 may be pulled along the cable without turning the same to slit the sheathing of the cable in a straight line, if the cutter blade 41 has been aligned with the portion of the cable along which the portions l2, l1 are pulled. If

the cutter blade 41 has been set at an angle, as

described, the members I4, I8 and l5, l9 may be used in pulling to rotate the portions l2, l1 about the cable sothat said blade 41 will cut, or slit,

in a spiral path.

From the foregoing, it will now be seen that there is herein provided a device accomplishing all the objects of this invention and others, including advantages of great practical utility and commercial importance.

Modifications of the invention, as described, may be resorted to within the scope of the appended claim.

Iclaim:

In a cable stripper, in combination, an upper portion having a semi-cylindrical recess therein, a lower portion having a semi-cylindrical recess therein in aligned relation with said first-menor section of cable, guide members 50,52, or inserts, as at 60, of a desired size and configuration, according to the diameter of the cable, not shown, to be stripped are provided and secured in the recesses I3 and, if necessary, 30. v The cutter 41 is then aligned, either longitudinally with respect to the cable, or set at a desired angle thereto to provide a helical cut, by pulling out the pins 42 and rotating the bushing member 32 to dis-, pose the cutter blade 41 at a desired angle with respect'to the longitudinal axis of the portion of a cable passing through the guide members 50, 52, or, through the recess 30 and the insert 60, as the case may be. The cutter blade 41 is then adjusted to cut'through the sheathing of the cable, to a desired depth, by adjusting the shank 34in the bushing member 32 and setting said tioned recess to form a cylindrical bore, a cutter blade extending into the recess of the upper portion, and handle members extending from opposite sides of each of said portions in pairs, one pair being pivotally connected, and means to mount the cutter-blade in said upper portion comprising a bushing member rotatably adjustable in said upper portion about an axis at a right angle to the axis of said bore, snap-action devices in said upper portion and bushing member for releasably locking the bushing member in different adjusted positions, and a square shank carrying said cutter blade and slidably mounted in said bushing member'for longitudinal adjustment in said bushing member in the axis thereof into different positions, and manipulative means for locking said shank in said different adjusted positions.

CHARLES S. VAUGHAN, JR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

